footer {
    height: 80px;
    position: fixed;
    bottom: 0;
    right: 0;
    left: 0;
    z-index:1000;
    background-color: #4f90fb;
    text-align: center;
    padding: 10px 0;
    &>a{
        display: inline-block;
        width: 100%;
        height: 100%;
        color: #fff !important;
        background-color: transparent;
        line-height: 30px;
        &>img{
            border-radius: 50%;
            width: 40px;
            vertical-align: bottom;
        }
        &>span{
            font-size: 16px;

        }
    }
}